Measuring instrument for dental files



FIG. 1 is a top plan view of a measuring instrument for dental files showing our new design;

FIG. 2 is a bottom plan view thereof;

FIG. 3 is a typical side elevation view thereof;

FIG. 4 is a cross-sectional view of FIG. 1 as taken along the lines IV--IV. 

The ornamental design for a measuring instrument for dental files, as shown and described. 